/*
 * Copyright (c) 2008 James Molloy, Jörg Pfähler, Matthew Iselin
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <process/LockManager.h>
#include <processor/Processor.h>
#include <Log.h>

LockManager::LockManager() :
  m_Stack(32)
{
  m_Stack.clear();
}

LockManager::~LockManager()
{
}

void LockManager::acquired(Semaphore& sem)
{
  m_Stack.pushBack(&sem);
}

void LockManager::released(Semaphore& sem)
{
  Semaphore *pPopped = m_Stack.popBack();
  if (pPopped != &sem)
  {
    m_Stack.pushBack(pPopped);
    FATAL("Lock release out of order.");
  }
}
